FAIR VALUE OF INVESTMENTS - Schedule of Investments Carried at Fair Value (Details) - EBP 039 - USD ($)	Dec. 31, 2025	Dec. 31, 2024
EBP, Investment, Fair Value and NAV [Line Items]
Total	$ 163,563,000	$ 120,649,724
Level 1
EBP, Investment, Fair Value and NAV [Line Items]
Total	163,285,321	120,355,499
Level 2
EBP, Investment, Fair Value and NAV [Line Items]
Total	277,679	294,225
Level 3
EBP, Investment, Fair Value and NAV [Line Items]
Total	0	0
Short-term investments
EBP, Investment, Fair Value and NAV [Line Items]
Total	277,679	294,225
Short-term investments \| Level 1
EBP, Investment, Fair Value and NAV [Line Items]
Total	0	0
Short-term investments \| Level 2
EBP, Investment, Fair Value and NAV [Line Items]
Total	277,679	294,225
Short-term investments \| Level 3
EBP, Investment, Fair Value and NAV [Line Items]
Total	0	0
RTX common stock
EBP, Investment, Fair Value and NAV [Line Items]
Total	22,628,626	14,780,221
RTX common stock \| Level 1
EBP, Investment, Fair Value and NAV [Line Items]
Total	22,628,626	14,780,221
RTX common stock \| Level 2
EBP, Investment, Fair Value and NAV [Line Items]
Total	0	0
RTX common stock \| Level 3
EBP, Investment, Fair Value and NAV [Line Items]
Total	0	0
Mutual funds
EBP, Investment, Fair Value and NAV [Line Items]
Total	140,656,695	105,575,278
Mutual funds \| Level 1
EBP, Investment, Fair Value and NAV [Line Items]
Total	140,656,695	105,575,278
Mutual funds \| Level 2
EBP, Investment, Fair Value and NAV [Line Items]
Total	0	0
Mutual funds \| Level 3
EBP, Investment, Fair Value and NAV [Line Items]
Total	$ 0	$ 0

Fair value of investment, excluding plan interest in master trust, held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, derivative, investment measured at net asset value per share as practical expedient, and insurance contract not meeting fully-benefit responsive investment criteria.

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+ Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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